ACIS Study of Dark Matter in Clusters

Details ACIS Study of Dark Matter in Clusters ACIS Study of Dark Matter in Clusters

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..332g&link_type=abstract

Chandra Proposal ID #01800147

Physics

Chandra Proposal Id #01800147

Scientific paper

Clusters of galaxies are large gravitationally bound systems dominated by dark matter (DM). The amount and spatial distribution of DM in clusters are keys to understanding the development of cosmic structure and cosmography. The gravitational potential of clusters observed here can been mapped in various ways: strong or weak gravitational lensing of background galaxies, Sunyaev-Zel'dovich effect, and X-ray gas hydrostatic equilibrium. ACIS will measure the cluster X-ray surface brightness and temperature profiles, detect nonuniformities and substructure that will signficantly improve our understanding of their DM distribution.

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